hv: enhance Makefile to compile debug/release into 2 libraries

enhance Makefile to compile debug/release into 2 libraries

v1 -> v2:
 * auto make all the libraries

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>

hypervisor/release/Makefile

@@ -0,0 +1,25 @@
+#
+# ACRN Hypervisor Static Library for Release Version
+#
+
+FILE_PATH := $(dir $(MKFL_NAME))
+SRCS += $(wildcard $(FILE_PATH)/*.c)
+OBJS += $(patsubst %.c,$(HV_OBJDIR)/%.o,$(SRCS))
+
+.PHONY: default
+default: lib
+
+ifeq ($(CONFIG_RELEASE),y)
+lib: $(OBJS)
+	$(AR) $(ARFLAGS) $(LIB_RELEASE) $(OBJS)
+endif
+
+.PHONY: clean
+clean:
+	rm -f $(OBJS)
+
+-include $(OBJS:.o=.d)
+
+$(HV_OBJDIR)/%.o: %.c
+	[ ! -e $@ ] && mkdir -p $(dir $@); \
+	$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. -c $(CFLAGS) $(ARCH_CFLAGS) $< -o $@ -MMD -MT $@